# WAC 173-340-210: WAC 173-340-210. Usage

> Washington · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_173_340_210

## Section

- **Citation:** WAC 173-340-210
- **Heading:** WAC 173-340-210. Usage
- **Jurisdiction:** Washington
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Washington Administrative Code / Title 173 / Chapter 173-340 / Section 173-340-210

## Text

For the purposes of this chapter, the following apply:
(1) Unless the context clearly requires otherwise, the use of the singular includes the plural and conversely.
(2) The terms "applicable," "appropriate," "relevant," "unless otherwise directed by ecology " and similar terms implying discretion mean as determined by ecology, with the burden of proof on other persons to demonstrate that the requirements are or are not necessary.
(3) "Approved" means for ecology-conducted or ecology-supervised remedial actions.
(4) "Conduct" means to perform or undertake whether directly or through an agent or contractor, unless this chapter expressly provides otherwise.
(5) "Include" means included, but not limited to.
(6) "May" or "should" means the provision is optional and permissive, and does not impose a requirement.
(7) "Shall," "must," or "will" means the provision is mandatory.
(8) "Threat" means threat or potential threat.
(9) "Under" means pursuant to, subject to, required by, established by, in accordance with, and similar expressions of legislative or administrative authorization or direction.

## Nearby sections

- [WAC 173-340-100 WAC 173-340-100. Purpose](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_173_340_100.md)
- [WAC 173-340-110 WAC 173-340-110. Applicability](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_173_340_110.md)
- [WAC 173-340-120 WAC 173-340-120. Overview](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_173_340_120.md)
- [WAC 173-340-130 WAC 173-340-130. Administrative principles](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_173_340_130.md)
- [WAC 173-340-200 WAC 173-340-200. Definitions](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_173_340_200.md)
- [WAC 173-340-210 WAC 173-340-210. Usage](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_173_340_210.md)
- [WAC 173-340-300 WAC 173-340-300. Site discovery and reporting](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_173_340_300.md)
- [WAC 173-340-310 WAC 173-340-310. Initial investigation](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_173_340_310.md)
- [WAC 173-340-320 WAC 173-340-320. Site hazard assessment and ranking](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_173_340_320.md)
- [WAC 173-340-330 WAC 173-340-330. Contaminated sites list](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_173_340_330.md)
- [WAC 173-340-335 WAC 173-340-335. No further action sites list](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_173_340_335.md)
- [WAC 173-340-340 WAC 173-340-340. Program planning and assessment](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_173_340_340.md)
- [WAC 173-340-350 WAC 173-340-350. Remedial investigation](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_173_340_350.md)
- [WAC 173-340-351 WAC 173-340-351. Feasibility study](https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_173_340_351.md)

---

Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/STATE_WA_ADC_173_340_210. Check the current official text before relying on it. Not legal advice.